Hello and noob question help!

[POL]

Unlikely that they'll be talking to anyone, you could try 120.800 for air-to-air, but if it's only the Lancaster then they won't need it.

Other frequencies could be Manchester Radar 118.575, Doncaster Radar 126.225 or East Midlands Radar 134.175, although there's no requirement for calls to be made to anyone.

[POL]

Ah, good point, forgot about that! Again, probably on 120.800, as I don't think the Lancaster has UHF?